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SESK: Stuff Everyone Should Know · sesk.info/weld-cutting-thick-steel

For steel thicker than 1 inch, which cutting tool is capable of greater speeds?

The oxy-fuel torch.

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  1. A plasma cutter
  2. Neither, thick steel cannot be cut
  3. An oxy-fuel torch ✔

Why: Plasma is fast on thinner metal. Past about 1 inch of steel, oxy-fuel can cut faster.

Huh, didn't know that: Miller says plasma needs no preheating of the metal before cutting.

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References

Answer: An oxy-fuel torch. Plasma is fast on thinner metal. Past about 1 inch of steel, oxy-fuel can cut faster.

  1. Choosing Between Oxy-Fuel and Plasma Cutting (Miller) www.millerwelds.com/resources/article-library/choosing-between-oxy-fuel-and-plasma-cutting-systems
    For thicker steels of more than 1 inch, oxy-fuel torches are capable of greater cutting speeds.
    Checked 2026-10-10.

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